Wireless handheld audio capture device and multi-vocalist method for audiovisual media application

ABSTRACT

Embodiments described herein relate generally to systems comprising a display device, a display device-coupled computing platform, a mobile device in communication with the computing platform, and a content server in which methods and techniques of capture and/or processing of audiovisual performances are described and, in particular, description of techniques suitable for use in connection with display device connected computing platforms for rendering vocal performance captured by a handheld computing device.

CROSS-REFERENCE TO RELATED APPLICATION(S)

The present application claims priority of U.S. Provisional ApplicationNo. 62/247,743, filed Oct. 28, 2015.

The present application is also related to commonly-owned, co-pending,U.S. application Ser. No. ______ filed on even date herewith, entitled“Audiovisual Media Application Platform with Wireless HandheldAudiovisual Input,” and naming Benjamin Hersh, John Shimmin, JeannieYang, and Perry R. Cook as inventors. Each of the foregoing applicationsis incorporated herein by reference.

BACKGROUND

Field of the Invention

The invention(s) relate generally to capture, processing and/orrendering of audiovisual performances and, in particular, to techniquessuitable for use in connection with display device-connected (orintegrated) computing platforms, handheld computing devices, andgraphical user interfaces therefor.

Description of the Related Art

The installed base of mobile phones, personal media players and otherportable computing devices grows in sheer number and computational powereach day. Hyper-ubiquitous and deeply entrenched in the lifestyles ofpeople around the world, these devices transcend nearly every culturaland economic barrier. Computationally, the portable computing devices oftoday offer speed and storage capabilities comparable to desktop orworkstation computers from less than ten years ago, rendering themsurprisingly suitable for real-time sound synthesis and other musicalapplications. Partly as a result, some modern devices, such as iPhone®,iPad®, iPod Touch® and other iOS® or Android devices, support audio andvideo processing quite capably, while at the same time providingplatforms suitable for advanced user interfaces. Indeed, applicationssuch as the Smule Ocarina™, Leaf Trombone®, I Am T-Pain™, AutoRap®,Sing! Karaoke™, Guitar! By Smule®, and Magic Piano® apps available fromSmule, Inc. have shown that advanced digital acoustic techniques may bedelivered using such devices in ways that provide compelling musicalexperiences.

Devices having AirPlay® modes of operation popularized by Apple, Inc.have been used to wirelessly mirror content to television displays,thereby providing a larger screen experience for content and featuresavailable from using a mobile phone. For example, an Apple TV™ set topbox may be connected to a standard television or other display device toprovide such mirroring. Apple TV devices, as well as competitiveTV-connected media streaming devices, may support retrieval andrendering of content from a network, as well as the execution of games,entertainment applications, etc. iPhone®, iPad®, iPod Touch®, AirPlay®,Bonjour®, and Apple TV are trademarks of Apple Inc. iOS® is a trademarkof Cisco Technology, Inc. Android is a trademark of Google Inc.

As researchers seek to transition their innovations to commercialapplications deployable to modern handheld devices and media applicationplatforms within the real-world constraints imposed by processor, memoryand other limited computational resources thereof and/or withincommunications bandwidth and transmission latency constraints typical ofwireless networks, significant practical challenges present. Improvedtechniques and functional capabilities are desired, particularlyrelative to audiovisual content and user interfaces.

SUMMARY

It has been discovered that, despite many practical limitations imposedby mobile device platforms and application execution environments,audiovisual performances, including vocal music, may be captured andcoordinated with those of other users in ways that create compellinguser experiences. In some cases, the vocal performances of individualusers are captured (together with performance synchronized video) onmobile devices in the context of a karaoke-style presentation of lyricsin correspondence with audible renderings of a backing track. In somecases, vocal performances of individual users are captured by mobiledevices connected to or coupled with a display device-connectedcomputing platform, in which case the display device-connected computingplatform may perform the rendering of the karaoke-style presentation oflyrics in correspondence with audible renderings of a backing track. Insome cases, pitch cues may be presented to vocalists in connection withthe karaoke-style presentation of lyrics and, optionally, continuousautomatic pitch correction (or pitch shifting into harmony) may beprovided.

In some cases, the mobile device may perform the automatic pitchcorrection or pitch shifting, while in other cases, the pitch correctionor pitch shifting is performed by the display device-connected computingplatform or some combination of the two devices. Contributions ofmultiple vocalists may be coordinated and mixed in a manner that selectsfor presentation, at any given time along a given performance timeline,performance synchronized video of one or more of the contributors.Selections are typically in accord with a visual progression that codesa sequence of visual layouts in correspondence with other coded aspectsof a performance score such as pitch tracks, backing audio, lyrics,sections and/or vocal parts. The number, visual arrangement and sizingof individual visual cells in such layouts may vary throughout thecourse of a given coordinated performance.

In some cases, a device pairing protocol may be employed using wirelesslocal area network (WLAN) or personal area network (PAN) communications,near-field communications (NFC) or even optical or acousticregistrations or signals to associate one or more mobile devices (e.g.,phones or portable media devices) with a display device coupledcomputing platform that hosts a karaoke-style media application. In thisway, the associated mobile devices may provide an entertainment systemwith vocal audio capture (and in some cases performance synchronizedvideo capture) as part of a collaborative, group-oriented, karaoke-stylesocial interaction.

Bonjour® implementations of zero-configuration networking or othersimilar technologies that provide service discovery, address assignment,and/or hostname resolution may be employed the context of local areanetworks as part of a link layer solution in an internet protocol (IP)traffic-bearing environment such as Wi-Fi. However, additionalapplication layer integration such as for on-off microphone (live vs.mute), volume, audio effects, reverberation and/or other controls canalso be provided to facilitate usage in coordination with karaoke-stylepresentation and advance of lyrics, audible rendering of backing tracks,etc. In addition, in some cases or embodiments, pitch correction (e.g.,to nearest note in a current key or based on score-coded temporallysynchronized note targets) may be provided as part of vocal capturesignal processing at the mobile device or may be supported withapplication layer controls of media application signal processing hostedat the display device-connected computing platform. In some cases orembodiments, pairing operations may direct a user to orient a pairedmobile device in a manner that enhances its efficacy for audio captureand may employ accelerometer and/or gyroscopic devices provided on-boardthe mobile device to determine or monitor proper orientation.

In some embodiments in accordance with the present invention(s), amethod includes using a portable computing device as a wirelesslycoupled audio capture interface for a display device-coupled computingplatform, and detecting, at least for audio capture modes of operation,an orientation of the portable computing device, and in response to atleast some detected orientations, displaying on a touchscreen of theportable computing device an indication to the user of the portablecomputing device to reorient the portable computing device from agenerally right-side-up orientation to a generally upside-downorientation. The generally upside-down orientation orients themicrophone toward the user's mouth.

In some embodiments, the orientation detecting is via one or more of agyroscopic sensor and an accelerometer of the portable computing device.In some embodiments, the method further includes displaying, in thegenerally right-side-up orientation, first display content including theindication to reorient the portable computing device and, responsive todetection of a change in orientation of the portable computing device,displaying in the generally up-side-down orientation, second displaycontent including one or more user interface controls for audio capture.In some embodiments, transition from the first display content to thesecond display content includes a rotational transformation of at leastsome visual feature of first display content. In some embodiments, theindication to reorient includes a dynamic on-screen visual ofcomplementary semi-circular arrows.

In some embodiments, the one or more user interface controls for audiocapture include an on-off switch-type user interface control and,responsive to user gestures on the touchscreen, an operating modechanges between (i) a first user interface state wherein captured vocalaudio is transmitted to the display device-coupled computing platformover the wireless network and (ii) a second user interface state whereinvocal audio is not transmitted.

In some embodiments, the method further includes capturing, via amicrophone of the portable computing device, vocal audio from a user ofthe portable computing device; and visually rendering, on thetouchscreen display of the portable computing device, cues correspondingto the amplitude of the captured vocal audio.

In some embodiments in accordance with the present invention(s), acomputer program product is encoded in non-transitory media andincluding instructions executable in connection with any of theforegoing methods to detect orientation of the portable computing deviceand to wirelessly transmit captured vocal audio to the displaydevice-coupled computing platform.

In some embodiments in accordance with the present inventions, a methodincludes using a touchscreen-enabled portable computing device in agenerally upside-down orientation as a wirelessly coupled audio captureinterface for a display device-coupled computing platform, wherein thegenerally upside-down orientation presents the microphone toward theuser's mouth; and capturing a vocal audio stream using the microphone ofthe portable computing device and, via a wireless network, transmittingthe captured vocal audio stream to a media application executing on thedisplay device-coupled computing platform for use as an audio inputthereof.

In some embodiments, the method further includes pairing (prior to thecapturing) the touchscreen-enabled portable computing device and thedisplay device-coupled computing platform for communications over thewireless network. In some embodiments, the method further includesdetecting, using one or more of an accelerometer and a gyroscope of theportable computing device, an orientation of the portable computingdevice and, responsive to a detected change in orientation,transitioning to the vocal capture. In some embodiments, the methodfurther includes displaying, on the touchscreen of the portablecomputing device, an on-off switch-type user interface control and,responsive to user gestures on the touchscreen, changing between (i) afirst user interface state wherein the captured vocal audio streamcaptured is transmitted to the computing platform over the wirelessnetwork and (ii) a second user interface state wherein the vocal audiostream is not transmitted.

In some embodiments, the method further includes pitch correcting, atthe portable computing device, captured vocals prior to transmitting thecaptured vocal audio stream to the display device-coupled computingplatform. In some embodiments, the method further includes pitchcorrecting (at the display device-coupled computing platform) thecaptured vocal audio stream transmitted from the portable computingdevice; and audibly rendering, at the display device-coupled computingplatform, the pitch-corrected vocal audio stream.

In some embodiments, the audible rendering includes vocals of anadditional vocalist other than the user, and the method further includesvisually displaying on a display coupled to the display device-coupledcomputing platform performance synchronized video of the additionalvocalist. In some embodiments, the method further includes displaying,on the touchscreen of the portable computing device, an audioreverberation user interface control; and responsive to user gestures onthe touchscreen and to a resulting state of the audio reverberation userinterface control, changing signal processing applied to the vocal audiostream at either or both of the portable computing device and thedisplay device-coupled computing platform. In some embodiments, themethod further includes displaying, displaying, on the touchscreen ofthe portable computing device, an audio volume user interface control;and responsive to user gestures on the touchscreen and to a resultingstate of the audio volume user interface control, changing signalprocessing applied to the vocal audio stream at either or both of theportable computing device and the display device-coupled computingplatform. In some embodiments, the method further includes displaying,displaying, on the touchscreen of the portable computing device, anaudio effects user interface control; and responsive to user gestures onthe touchscreen and to a resulting state of the audio effects userinterface control, changing signal processing applied to the vocal audiostream at either or both of the portable computing device and thedisplay device-coupled computing platform.

In some embodiments in accordance with the present invention(s), amethod includes browsing screen indications respectively correspondingto a plurality of collaboration participants on a user interface of adisplay device-coupled computing platform, the user interfacecontrollable using a handheld pointing device; capturing, via thepointing device, a user gesture indicative of selection of a firstcollaboration participant; responsive to selection of the firstcollaboration participant, initiating audiovisual rendering of a firstaudiovisual performance associated with the first collaborationparticipant using the display device-coupled computing platform; andresponsive to selection of a second collaboration participant,transitioning from the audiovisual rendering of the first audiovisualperformance to audiovisual rendering of a second audiovisual performanceassociated with the second collaboration participant, wherein the firstand second audiovisual performances are each synchronized to a commonbacking track and wherein the transitioned-to second audiovisualperformance continues from a point therein that corresponds to atransitioned-from point in first audiovisual performance.

In some embodiments, the screen indications for at least some of theplurality of collaboration participants are visually overlaid on avisual depiction of a globe background in correspondence with arespective geographic location of one of the associated audiovisualperformance or the collaboration participant. In some embodiments, thescreen indications for at least some of the plurality of collaborationparticipants are visually arranged in user selection array, wherein theuser gesture indicative of selection includes a swipe gesture, andwherein a particular collaboration participant is selected based on avisually centered one of the screen indications.

In some embodiments, the method further includes rotating the globebackground in correspondence with movement of a cursor controlled by thehandheld pointing device In some embodiments, the method furtherincludes visually depicting (in correspondence with the audiblerendering) an emanation from the screen indication of the currentlyselected collaboration participant.

These and other embodiments in accordance with the present invention(s)will be understood with reference to the description and appended claimswhich follow.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is illustrated by way of example and notlimitation with reference to the accompanying figures, in which likereferences generally indicate similar elements or features.

FIG. 1 depicts information flows amongst illustrative mobile phone-typeportable computing devices, a display device-connected computingplatform and a content server in accordance with some embodiments of thepresent invention(s) in which one or more of the portable computingdevices are paired with the display device-connected computing platformfor audiovisual capture.

FIG. 2 is a flow chart that depicts a sequence of operations for devicepairing in accordance with some embodiments of the present invention(s)to allow a mobile-phone type handheld device to provide vocal audiocapture (with or without performance synchronized video) in connectionwith a karaoke-style media application executing on an illustrativedisplay-coupled, console or set-top box type device.

FIG. 3 depicts a user employing a mobile-phone type handheld devicepaired in accordance with some embodiments of the present invention(s)to provide vocal audio capture in connection with a karaoke-style mediaapplication.

FIG. 4 depicts information flows and operations within and amongstillustrative devices of a system configured to support a karaoke-stylemedia application in accordance with some embodiments of the presentinvention(s).

FIG. 5 is a network diagram that illustrates cooperation of exemplarydevices in accordance with some embodiments of the present invention(s).

FIG. 6 is a flow chart that depicts a sequence of operations andexemplary visual depiction for a browse-by-vocalist function inaccordance with some embodiments of the present invention(s) to providea generally seamless transition from coordinated audiovisual performancecontent of one vocalist to another based on synchronization to a commonbacking track.

Skilled artisans will appreciate that elements or features in thedrawings are illustrated for simplicity and clarity and have notnecessarily been drawn to scale. For example, the dimensions orprominence of some of the illustrated elements or features may beexaggerated relative to other elements or features in an effort to helpto improve understanding of embodiments of the present invention.

DETAILED DESCRIPTION

Although some embodiments of the present invention are not necessarilylimited thereto, pitch-corrected, karaoke-style, vocal capture providesa useful descriptive context. In some embodiments, a displaydevice-connected computing platform may be utilized and may operate inconjunction with a mobile phone. For example, in some embodiments suchas illustrated in FIG. 1, an iPhone® handheld available from Apple Inc.(or more generally, handheld 124) hosts software that executes incoordination with a content server over a network (e.g., the Internet)to provide vocal capture and continuous real-time, score-coded pitchcorrection and harmonization of the captured vocals.

As a further example, in some embodiments such as illustrated in FIG. 1,a display device-connected computing platform (also referred to hereinas a display device-coupled computing platform), such as an AppleTV™computing platform available from Apple Inc. (or more generally, displaydevice-connected computing platform 101) hosts software (e.g., a mediaapplication 460, see FIG. 4) that executes in coordination with acontent server 110 to provide vocal capture and continuous real-time,score coded pitch correction and harmonization of the captured vocals.The display device-connected computing platform 101 may be coupled to orconnected to a display device, such as a television or display 123. Inone embodiment, the display device-connected computing platform operatesin conjunction with, or paired with, a handheld 124 in that handheld 124operates as an audio input device (e.g., exposing its microphone 126 ormicrophone interface to facilitate vocal capture 103 and, optionally,its camera for video capture) for display device-connected computingplatform 101. In some embodiments, the handheld 124 and displaydevice-connected computing platform 101 communicate over a wirelesslocal area network (WLAN) using, in one example embodiment, 802.11Wi-Fi, and may be paired using a protocol such as Bonjour.

As is typical of karaoke-style applications (such as the “I am T-Pain”application for iPhone originally released in September of 2009, thelater-released “Glee” application, or current versions of the Sing!Karaoke application, all available from Smule, Inc.), a backing track ofinstrumentals and/or vocals can be audibly rendered for a user/vocalistto sing against. In the configuration of FIG. 1, lyrics (102A) may besupplied (102) from content server 100 and displayed via displaydevice-connected computing platform 101 (and display 123) incorrespondence with audible rendering (104) so as to facilitate akaraoke-style vocal performance by a user. Pitch and (optionally)harmony cues (105A) may also be supplied (105) from content server 100and displayed via display device-connected computing platform 101 (anddisplay 123) in correspondence with audible rendering (104). In somecases or situations, backing audio may be rendered from a local storesuch as from content of an iTunes™ library resident on the handheld,display device-connected computing platform, content server, or onanother computing device in communication with the handheld or displaydevice-connected computing platform. In some embodiments, an applicationexecuting on the handheld device 124 pairs with the media applicationexecuting on the display device-connected computing platform 101 toenable transmission of user vocals (103) and, in some cases, videocaptured by the handheld device 124 to the display device-connectedcomputing platform 101 for rendering at the display 123. In some cases,audiovisual (AV) signals are transferred (109) between displaydevice-connected computing platform 101 and display 123 using HDMI-typecabling, connections, signaling and protocol standards.

In some cases or embodiments, vocal audio and/or video captured athandheld device 124 is transmitted as AV performance 106 to a contentserver (e.g., 110) for mixing (112) with other sources of AV content andsupply to other devices (e.g., 120). In some cases or embodiments,techniques such as described in one or more of the previouslyincorporated, commonly-owned and co-pending U.S. patent applications(Ser. Nos. 15/173,041 and 14/928,727) are employed to provide a visualprogression or to control position and/or prominence of compositeperformance synchronized video (122) and audio (121) at a device such ashandheld 120 or display device-connected computing platform 101 anddisplay 123.

User vocals 103 captured at handheld device 124 may be pitch-correctedcontinuously and in real-time (e.g., at the handheld or at the displaydevice-connected computing platform) and audibly rendered (see 104,mixed with backing track 107) to provide the user with an improved tonalquality rendition of his/her own vocal performance. In some cases, anapplication executing on handheld device 124 prompts the user to orientthe handheld device generally upside down, such that the microphone 126of the mobile device is oriented toward the mouth of the user. In somecases, the application executing on handheld device 124 detectsorientation using accelerometer, gyroscope sensor or other facilities ofhandheld device 124. Pitch correction is typically based on score-codednote sets (e.g., pitch and harmony cues 105), which provide continuouspitch-correction algorithms with performance synchronized sequences oftarget notes in a current key or scale. In general, pitch cues and/orlyrics may be presented to a user vocalist on either or both of display123 and handheld device 124, depending on design considerations or userpreferences.

In some cases or embodiments, in addition to performance synchronizedmelody targets, score-coded harmony note sequences (or sets) providepitch-shifting algorithms with additional targets for pitch-shifting toharmony versions of the user's own captured vocals. Typically, such notesequences or sets are coded as offsets relative to a lead melody notetrack and typically scored only for selected portions thereof) In somecases, pitch correction settings may be characteristic of a particularartist such as the artist that performed vocals associated with theparticular backing track.

In the illustrated embodiment, backing audio (here, one or moreinstrumental and/or vocal tracks), lyrics and timing information (102)and pitch/harmony cues (105) are all supplied (or demand updated) fromone or more content servers or hosted service platforms (here, contentserver 110). For a given song and performance, such as “When I'm Gone,”several versions of the background track (107) may be stored, suppliedor demand updated, e.g., on or from content server 110. For example, insome implementations or deployments, versions may include:

-   -   uncompressed stereo way format backing track,    -   uncompressed mono way format backing track and    -   compressed mono m4a format backing track.

In addition, lyrics, melody and harmony track note sets and relatedtiming and control information may be encapsulated as a score coded inan appropriate container or object (e.g., in a Musical InstrumentDigital Interface, MIDI, or Java Script Object Notation, json, typeformat) for supply together with the backing track(s). Using suchinformation, display device-connected computing platform 101 and/orhandheld 124 may display lyrics and even visual cues related to targetnotes, harmonies and currently detected vocal pitch in correspondencewith an audible performance of the backing track(s) so as to facilitatea karaoke-style vocal performance by a user.

Thus, if an aspiring vocalist selects on the handheld device or on thedisplay device-connected computing platform “When I'm Gone” asoriginally popularized by the singer Anna Kendrick, whenimgone.json andwhenimgone.m4a may be downloaded from the content server (if not alreadyavailable or cached based on prior download) and, in turn, used toprovide background music, synchronized lyrics and, in some situations orembodiments, score-coded note tracks for continuous, real-timepitch-correction shifts while the user sings. Optionally, at least forcertain embodiments or genres, harmony note tracks may be score codedfor harmony shifts to captured vocals. Typically, a capturedpitch-corrected (possibly harmonized) vocal performance is saved locallyon the handheld device or display device-connected computing platform asone or more way files and is subsequently compressed (e.g., usinglossless Apple Lossless Encoder, ALE, or lossy Advanced Audio Coding,AAC, or vorbis codec) and encoded for upload (106) to content server 110as an MPEG-4 audio, m4a, or ogg container file. MPEG-4 is aninternational standard for the coded representation and transmission ofdigital multimedia content for the Internet, mobile networks andadvanced broadcast applications. OGG is an open standard containerformat often used in association with the vorbis audio formatspecification and codec for lossy audio compression. Other suitablecodecs, compression techniques, coding formats and/or containers may beemployed if desired.

Depending on the implementation, encodings of dry vocal and/orpitch-corrected vocals may be uploaded (106) to content server 110. Ingeneral, such vocals (encoded, e.g., as way, m4a, ogg/vorbis content orotherwise) whether already pitch-corrected or pitch-corrected at contentserver 110 can then be mixed (111), e.g., with backing audio and othercaptured (and possibly pitch shifted) vocal performances, to producefiles or streams of quality or coding characteristics selected accordwith capabilities or limitations a particular target (e.g., handheld120) or network. For example, pitch-corrected vocals can be mixed withboth the stereo and mono way files to produce streams of differingquality. In some cases, a high quality stereo version can be producedfor web playback and a lower quality mono version for streaming todevices such as the handheld device or display device-connectedcomputing platform itself.

Performances of multiple vocalists may be accreted in a virtual gleeclub performance. In some embodiments, one set of vocals (for example,in the illustration of FIG. 1, main vocals captured at displaydevice-connected computing platform 101 in conjunction with handheld124) may be accorded prominence in the resulting mix. In general,prominence may be accorded (112) based on amplitude, an apparent spatialfield and/or based on the chordal position into which respective vocalperformance contributions are placed or shifted. In some embodiments, aresulting mix (e.g., pitch-corrected main vocals captured and pitchcorrected at display device-connected computing platform 101 and/orhandheld 124) mixed with a compressed mono m4a format backing track andone or more additional vocals pitch shifted into harmony positions aboveor below the main vocals) may be supplied to another user at a remotedevice (e.g., handheld 120) for audible rendering (121) and/or use as asecond-generation backing track for capture of additional vocalperformances, in addition to a performance synchronized video 122.

In some embodiments, as described above, handheld 124 operates inconjunction with display device-connected computing platform 101 toserve as an audio input device for media application software hosted onand/or executing on display device-connected computing platform 101. Insome embodiments, the coordination, or pairing, between handheld 124 anddisplay device-connected computing platform 101 occurs in a series ofsteps presented to a user of software hosted on handheld 124 operatingin conjunction with software hosted on display device-connectedcomputing platform 101.

In some cases or embodiments, the mixing and presentation of audiovisualperformance of multiple vocalists is managed or controlled using userinterface features provided by the display device-connected computingplatform 101 executing software which displays a karaoke-type mediaapplication user interface on television 123. For example, displaydevice-connected computing platform 101 may display on television 123 aglobe image or image of the earth on which multiple vocalists arevisualized according to their geographic location, and display furtheruser interface features, embellishments, and other indications incorrespondence with the vocalist visualizations.

User vocals 103 are captured at a handheld device 124. In someembodiments, the handheld device 124 is oriented such that a home orother button on the face of the handheld device 124 is positioned abovea receiver (i.e., the speaker for phone calls when the handheld deviceis used as a mobile phone, typically positioned at a top of the mobiledevice so as to be near the user's ear) of the handheld device 124.Thus, the microphone of the handheld device 124 is positioned generallycloser to the user's mouth. Positioning the microphone in this generallyupside-down manner may result in higher audio quality (amplitude,signal-to-noise, fidelity, etc.) for the captured user vocals. FIG. 3illustrates one such orientation and use in which the user vocalistholds handheld device 124 (here an iPhone-type mobile phone) in a mannerthat emulates handling of traditional stick microphone.

FIG. 2 is a flow chart that depicts a sequence of operations for devicepairing (220) in accordance with some embodiments of the presentinvention(s) to allow a mobile-phone type handheld device 124 to providevocal audio capture (with or without performance synchronized video) inconnection with a karaoke-style media application executing on anillustrative display-coupled, console or set-top box type device (e.g.,console or set-top box 101 HDMI coupled to display 123).

In some cases or embodiment, pairing 220 includes detecting (221) via adiscovery protocol (e.g., Bonjour or some other zero-configurationnetworking technologies that provide service discovery, addressassignment, and name resolution). In other cases or embodiments, nearfield communications, Bluetooth® or other personal area network (PAN)technologies, near-field communications (NFC) and/or even optical oracoustic registrations or signals may be employed to associate andthereafter address one or more mobile devices (e.g., phones or portablemedia devices) with a display device coupled computing platform thathosts a karaoke-style media application. An indication of the detected(or identified) local network presence may be displayed (222) onhandheld 124 to facilitate pairing and, based on a captured user gesture(223), the illustrated method may pair handheld 124 with console orset-top box 101 as an audio input to a karaoke-style media applicationexecuting thereon.

Optionally and dependent on the microphone pickup configuration ofhandheld 124, an indication may be displayed (224) on a display ofhandheld directing the user to reorient handheld 124 from a generallyright-side-up orientation to a generally upside-down orientation so asto more directly present the microphone for high-quality vocal capture.FIG. 3 illustrates one such orientation and microphone presentation thatmay be prompted. Referring again to FIG. 2, in some cases orembodiments, the orientation of handheld 124 may be detected (225) usingaccelerometer and/or gyroscope of the handheld device. Feedback fromsuch sensors or devices may be used to confirm proper orientation and/orto provide the user with corrective visual, audible or haptic feedback.

FIG. 6 is a flow chart that depicts a sequence of operations andexemplary visual depiction for a browse-by-vocalist function inaccordance with some embodiments of the present invention(s). Thefunctionality depicted provides a generally seamless transition fromcoordinated audiovisual performance content of one vocalist to anotherbased on synchronization to a common backing track. Based on userinterface gestures captured at either display device-connected computingplatform 123 or handheld 124 (not specifically shown in FIG. 6, butrecall FIGS. 1 and 2), audiovisual content of various vocalists issequentially presented based on a performance timeline keyed to thebacking track against which vocals for the respective vocalists werecaptured. Thus, a coordinated audiovisual performance 601 is audibly andvisually rendered (e.g., 622, 624) with transitions (e.g., 623) fromcaptured audiovisual content of one vocalist to another vocalisttriggered by browse indicative gestures of a user (see 621, 625). Thetransitioned-to next audiovisual performance continues from a pointtherein that corresponds to a transitioned-from point in the prioraudiovisual performance and is based on synchronization to a commonbacking track. Note that, for simplicity of illustration, a singlevocalist at time presentation is illustrated; however, persons of skillin the art having benefit of the present disclosure will appreciate thataudiovisuals for multiple vocalists may be concurrently rendered in somecases or embodiments.

In the exemplary visual depiction of FIG. 6, a performance synchronizedvideo of the current vocalist is presented on-screen in a popup windowvisually anchored to a vocalist-associated geocoded position on a globe.Other vocalists having associated geocoded positions within a currentgeographic view and for whom audiovisual content is available (andsynchronizable to the common backing track) are also presented on screenwith teardrop style icons on the globe for selection and transitioningbased on a selective user gestures. Rendered audio 631 presents audiofor a sequence of vocalists in correspondence with user gesturedselections, together with performance synchronized video for thevocalists so selected.

Although the exemplary browse visually depicted in FIG. 6 is based on ageolocation index into browsable content, persons of skill in the arthaving benefit of the present disclosure will appreciate thatalternative browse modes and depictions need not anchor to geolocation.For example, in some alternative browse modes, presentation of browsablecontent may be based on social network proximity measures, popularity ina given community, browse history, computationally (or user community)rated quality of performances, etc. Indeed, globe-based geolocations maybe omitted in some browse modes, particularly where a current set orselection of available audiovisual content is not globally sourced.

FIG. 4 depicts information flows and operations within and amongstillustrative devices of a system configured to support a karaoke-stylemedia application (460) hosted by and executing on a console or set-topbox type device 101 using an audiovisual capture application (450)executing on a paired handheld device 124. User vocals (103) captured(453) via microphone interface (126) of handheld device 124 may beencoded (455) for transmission to content server 110 (via wide-areanetwork 404) and to the karaoke-style media application (460) executingon console/set-top box 101. In some embodiments, captured vocals aretransmitted over a local area network to a display device-connectedcomputing platform (e.g., console/set-top box 101). Audiovisual captureapplication 460 may optionally support real-time continuous pitchcorrection (454), e.g., in accordance with a musical score (105)received from content server 110 (via wide-area network 404,router/access point 402 and the wireless local area network WLAN).Likewise, backing tracks (107) as well as lyrics and timing information(102) received from content server 110 may be used to provide akaraoke-type experience at handheld device 124.

In some embodiments, the local area network is a wireless local areanetwork coupling the handheld device 124 to a wireless access point androuter, and then to the display device-connected computing platform(whether wired or wirelessly). Upon receipt of the vocals from thehandheld device 124, the display device-connected computing platform(e.g., console/set-top box 101) may itself pitch correct, time shift,harmonize, or perform other transformations on the captured and receivedvocals (see media application 460). In some modes of operation, encodedaudio information may be decoded (452) and used to drive (see D/A 451)an audible rendering via an acoustic transducer or audio signalinterface of handheld device 124. In some modes of operation, similar oranalogous vocal audio signals or encodings, together with performancesynchronized (or synchronizable) video, are conveyed over the wirelesslocal area network (WLAN) and output via an audio/visual outputinterface of the display device-connected computing platform, such asvia an HDMI output 109.

Display device 123, which may include a television or other display,audibly and visually renders (104) an audiovisual performance mix thatincludes a backing audio track (107) and the user's captured audiovisualperformance (106), potentially coordinated with captured audiovisualperformances of other users. In some cases or embodiments, the displaydevice-connected computing platform 101 may process and transmit uservocals to content server 110 via wide area network 404. Additionally,vocal performances of collaborators may be rendered by the displaydevice. Backing tracks (107), collaborator vocal performances, mixedperformances, lyrics for display (102), timings, scores (105), and otherdata may be received from content server 110 over a wide area networksuch as the Internet.

FIG. 5 is a network diagram that illustrates interconnection cooperationof exemplary devices in accordance with some system-level embodiments ofthe present invention(s) is described. Various devices, including, butnot limited to, display device-connected computing platforms such aconsole/set-top box 101 and display device 123, handheld devices 124,124.2 . . . 124.N, networks 404, servers 512 (which may include contentservers or service platforms, such as content server 110), portablecomputing devices 511, and other such devices, operate in coordinationin accordance with some embodiments of the present invention(s)described herein.

Karaoke Applications and Social Music, Generally

In general, for a given song, aspects of the song's musical structurecan be used to create a mapped sequence of visual layouts. For example,in some cases, situations or embodiments, song form, such as {verse,chorus, verse, chorus, bridge . . . }, is used to constrain the mapping.In some cases, such as in a duet, vocal part sequencing (e.g., you singa line, I sing a line, you sing two words, I sing three, we singtogether . . . ) provides structural information that is used to createa sequence of visual layouts. In some cases, situations or embodiments,building intensity of a song (e.g., as measured by acoustic power, tempoor some other measure) can result in a sequence of visual layouts thatadds greater and greater numbers of vocalists in correspondence withmeasured intensity.

Optionally, and in some cases or embodiments, vocal audio can bepitch-corrected in real-time at the mobile device (or more generally, ata portable computing device such as a mobile phone, personal digitalassistant, laptop computer, notebook computer, pad-type computer ornetbook) in accord with pitch correction settings, or at the displaydevice-connected computing platform, in accord with pitch correctionsettings. Alternatively, or additionally, pitch correction can beperformed using CPU and GPU facilities of a video console or set-topbox. In some cases, pitch correction settings code a particular key orscale for the vocal performance or for portions thereof. In some cases,pitch correction settings include a score-coded melody and/or harmonysequence supplied with, or for association with, the lyrics and backingtracks. Harmony notes or chords may be coded as explicit targets orrelative to the score coded melody or even actual pitches sounded by avocalist, if desired. Machine usable musical instrument digitalinterface-style (MIDI-style) codings may be employed for lyrics, backingtracks, note targets, vocal parts (e.g., vocal part 1, vocal part 2, . .. together), musical section information (e.g., intro/outro, verse,pre-chorus, chorus, bridge, transition and/or other section codings),etc. In some cases or embodiments, conventional MIDI-style codings maybe extended to also encode a score-aligned, visual progression ofmappings to visual cells of a succession of template screen layouts orto control position and/or prominence of composite performancesynchronized video and audio, as described in in one or more of thepreviously-incorporated, commonly-owned and co-pending U.S. patentapplications (Ser. No. 15/173,041 and 14/928,727).

Based on the compelling and transformative nature of the pitch-correctedvocals, performance synchronized video and score-coded harmony mixes,user/vocalists may overcome an otherwise natural shyness or angstassociated with sharing their vocal performances. Instead, a living roomfull of amateurs and even geographically distributed vocalists areencouraged to share with friends and family or to collaborate andcontribute vocal performances as part of social music networks. In someimplementations, these interactions are facilitated through socialnetwork- and/or eMail-mediated sharing of performances and invitationsto join in a group performance. Using uploaded vocals captured atclients such as the aforementioned portable computing devices, a contentserver (or service) can mediate such coordinated performances bymanipulating and mixing the uploaded audiovisual content of multiplecontributing vocalists. Depending on the goals and implementation of aparticular system, in additional to video content, uploads may includepitch-corrected vocal performances (with or without harmonies), dry(i.e., uncorrected) vocals, and/or control tracks of user key and/orpitch correction selections, etc.

Social music can be mediated in any of a variety of ways. For example,in some implementations, a first user's vocal performance, capturedagainst a backing track at a portable computing device and typicallypitch-corrected in accord with score-coded melody and/or harmony cues,is supplied to other potential vocal performers. Performancesynchronized video is also captured and may be supplied with thepitch-corrected, captured vocals. The supplied vocals are typicallymixed with backing instrumentals/vocals and form the backing track forcapture of a second (and potentially successive) user's vocals. Often,the successive vocal contributors are geographically separated and maybe unknown (at least a priori) to each other, yet the intimacy of thevocals together with the collaborative experience itself tends tominimize this separation. As successive vocal performances and video arecaptured (e.g., at respective portable computing devices) and accretedas part of the social music experience, the backing track against whichrespective vocals are captured may evolve to include previously capturedvocals of other contributors.

In some cases, captivating visual animations and/or facilities forlistener comment and ranking, as well as duet, glee club or choral groupformation or accretion logic are provided in association with an audiblerendering of a vocal performance (e.g., that captured andpitch-corrected at another similarly configured mobile device or displaydevice-connected computing platform) mixed with backing instrumentalsand/or vocals. Synthesized harmonies and/or additional vocals (e.g.,vocals captured from another vocalist at still other locations andoptionally pitch-shifted to harmonize with other vocals) may also beincluded in the mix. Geocoding of captured vocal performances (orindividual contributions to a combined performance) and/or listenerfeedback may facilitate animations or display artifacts in ways that aresuggestive of a performance or endorsement emanating from a particulargeographic locale on a user manipulable globe. In this way,implementations of the described functionality can transform otherwisemundane mobile devices and/or display device-connected computingplatforms into social instruments that foster a unique sense of globalconnectivity, collaboration and community.

Other Embodiments

While the invention(s) is (are) described with reference to variousembodiments, it will be understood that these embodiments areillustrative and that the scope of the invention(s) is not limited tothem. Many variations, modifications, additions, and improvements arepossible. For example, while particular styles, types and encodings ofaudiovisual content and particular home-entertainment system-orientedconfigurations are illustrated and described, persons of skill in theart having benefit of the present disclosure will appreciate variationsand adaptions suitable for a given deployment, implementation, musicalgenre or user demographic. Likewise, while pitch correction of vocalperformances captured in accord with a karaoke-style interface have beendescribed, other variations and adaptations will be appreciated.Furthermore, while certain illustrative signal processing techniqueshave been described in the context of certain illustrative applicationsand device/system configurations, persons of ordinary skill in the artwill recognize that it is straightforward to modify the describedtechniques to accommodate other suitable signal processing techniquesand effects.

Embodiments in accordance with the present invention may take the formof, and/or be provided as, a computer program product encoded in amachine-readable medium as instruction sequences and other functionalconstructs of software, which may in turn be executed in a computationalsystem (such as a iPhone handheld, mobile or portable computing device,or content server platform) to perform methods described herein. Ingeneral, a machine readable medium can include tangible articles thatencode information in a form (e.g., as applications, source or objectcode, functionally descriptive information, etc.) readable by a machine(e.g., a computer, computational facilities of a mobile device orportable computing device, etc.) as well as tangible storage incident totransmission of the information. A machine-readable medium may include,but is not limited to, magnetic storage medium (e.g., disks and/or tapestorage); optical storage medium (e.g., CD-ROM, DVD, etc.);magneto-optical storage medium; read only memory (ROM); random accessmemory (RAM); erasable programmable memory (e.g., EPROM and EEPROM);flash memory; or other types of medium suitable for storing electronicinstructions, operation sequences, functionally descriptive informationencodings, etc.

In general, plural instances may be provided for components, operationsor structures described herein as a single instance. Boundaries betweenvarious components, operations and data stores are somewhat arbitrary,and particular operations are illustrated in the context of specificillustrative configurations. Other allocations of functionality areenvisioned and may fall within the scope of the invention(s). Ingeneral, structures and functionality presented as separate componentsin the exemplary configurations may be implemented as a combinedstructure or component. Similarly, structures and functionalitypresented as a single component may be implemented as separatecomponents. These and other variations, modifications, additions, andimprovements may fall within the scope of the invention(s).

What is claimed is:
 1. A method comprising: using a portable computingdevice as a wirelessly coupled audio capture interface for a displaydevice-coupled computing platform; and detecting, at least for audiocapture modes of operation, an orientation of the portable computingdevice, and in response to at least some detected orientations,displaying on a touchscreen of the portable computing device anindication to the user of the portable computing device to reorient theportable computing device from a generally right-side-up orientation toa generally upside-down orientation, wherein the generally upside-downorientation orients the microphone toward the user's mouth.
 2. Themethod of claim 1, wherein the orientation detecting is via one or moreof a gyroscopic sensor and an accelerometer of the portable computingdevice.
 3. The method of claim 1, further comprising: displaying, in thegenerally right-side-up orientation, first display content including theindication to reorient the portable computing device; and responsive todetection of a change in orientation of the portable computing device,displaying in the generally up-side-down orientation, second displaycontent including one or more user interface controls for audio capture.4. The method of claim 3, wherein transition from the first displaycontent to the second display content includes a rotationaltransformation of at least some visual feature of first display content.5. The method of claim 1, wherein the indication to reorient includes adynamic on-screen visual of complementary semi-circular arrows.
 6. Themethod of claim 3, wherein the one or more user interface controls foraudio capture include an on-off switch-type user interface control; andwherein, responsive to user gestures on the touchscreen, an operatingmode changes between (i) a first user interface state wherein capturedvocal audio is transmitted to the display device-coupled computingplatform over the wireless network and (ii) a second user interfacestate wherein vocal audio is not transmitted.
 7. The method of claim 1,further comprising: capturing, via a microphone of the portablecomputing device, vocal audio from a user of the portable computingdevice; and visually rendering, on the touchscreen display of theportable computing device, cues corresponding to the amplitude of thecaptured vocal audio.
 8. A computer program product encoded innon-transitory media and including instructions executable in connectionwith the method of claim 1 to detect orientation of the portablecomputing device and to wirelessly transmit captured vocal audio to thedisplay device-coupled computing platform.
 9. A method comprising: usinga touchscreen-enabled portable computing device in a generallyupside-down orientation as a wirelessly coupled audio capture interfacefor a display device-coupled computing platform, wherein the generallyupside-down orientation presents the microphone toward the user's mouth;and capturing a vocal audio stream using the microphone of the portablecomputing device and, via a wireless network, transmitting the capturedvocal audio stream to a media application executing on the displaydevice-coupled computing platform for use as an audio input thereof. 10.The method of claim 9, further comprising: prior to the capturing,pairing the touchscreen-enabled portable computing device and thedisplay device-coupled computing platform for communications over thewireless network.
 11. The method of claim 9, further comprising:detecting, using one or more of an accelerometer and a gyroscope of theportable computing device, an orientation of the portable computingdevice; and responsive to a detected change in orientation,transitioning to the vocal capture.
 12. The method of claim 9, furthercomprising: displaying, on the touchscreen of the portable computingdevice, an on-off switch-type user interface control; and responsive touser gestures on the touchscreen, changing between (i) a first userinterface state wherein the captured vocal audio stream captured istransmitted to the computing platform over the wireless network and (ii)a second user interface state wherein the vocal audio stream is nottransmitted.
 13. The method of claim 9, further comprising: pitchcorrecting, at the portable computing device, captured vocals prior totransmitting the captured vocal audio stream to the displaydevice-coupled computing platform.
 14. The method of claim 9, furthercomprising: at the display device-coupled computing platform, pitchcorrecting the captured vocal audio stream transmitted from the portablecomputing device; and audibly rendering, at the display device-coupledcomputing platform, the pitch-corrected vocal audio stream.
 15. Themethod of claim 14, wherein the audible rendering includes vocals of anadditional vocalist other than the user, and further comprising visuallydisplaying on a display coupled to the display device-coupled computingplatform performance synchronized video of the additional vocalist. 16.The method of claim 9, further comprising: displaying, on thetouchscreen of the portable computing device, an audio reverberationuser interface control; and responsive to user gestures on thetouchscreen and to a resulting state of the audio reverberation userinterface control, changing signal processing applied to the vocal audiostream at either or both of the portable computing device and thedisplay device-coupled computing platform.
 17. The method of claim 9,further comprising: displaying, on the touchscreen of the portablecomputing device, an audio volume user interface control; and responsiveto user gestures on the touchscreen and to a resulting state of theaudio volume user interface control, changing signal processing appliedto the vocal audio stream at either or both of the portable computingdevice and the display device-coupled computing platform.
 18. The methodof claim 9, further comprising: displaying, on the touchscreen of theportable computing device, an audio effects user interface control; andresponsive to user gestures on the touchscreen and to a resulting stateof the audio effects user interface control, changing signal processingapplied to the vocal audio stream at either or both of the portablecomputing device and the display device-coupled computing platform. 19.A method comprising: browsing screen indications respectivelycorresponding to a plurality of collaboration participants on a userinterface of a display device-coupled computing platform, the userinterface controllable using a handheld pointing device; capturing, viathe pointing device, a user gesture indicative of selection of a firstcollaboration participant; responsive to selection of the firstcollaboration participant, initiating audiovisual rendering of a firstaudiovisual performance associated with the first collaborationparticipant using the display device-coupled computing platform; andresponsive to selection of a second collaboration participant,transitioning from the audiovisual rendering of the first audiovisualperformance to audiovisual rendering of a second audiovisual performanceassociated with the second collaboration participant, wherein the firstand second audiovisual performances are each synchronized to a commonbacking track and wherein the transitioned-to second audiovisualperformance continues from a point therein that corresponds to atransitioned-from point in first audiovisual performance.
 20. The methodof claim 19, wherein the screen indications for at least some of theplurality of collaboration participants are visually overlaid on avisual depiction of a globe background in correspondence with arespective geographic location of one of the associated audiovisualperformance or the collaboration participant.
 21. The method of claim19, wherein the screen indications for at least some of the plurality ofcollaboration participants are visually arranged in user selectionarray, wherein the user gesture indicative of selection includes a swipegesture, and wherein a particular collaboration participant is selectedbased on a visually centered one of the screen indications.
 22. Themethod of claim 20, further comprising: rotating the globe background incorrespondence with movement of a cursor controlled by the handheldpointing device.
 23. The method of claim 19, further comprising: incorrespondence with the audible rendering, visually depicting anemanation from the screen indication of the currently selectedcollaboration participant.